tousealternatepoints. if you are heading to san francisco, you will pretty much be diverted off. there is no estimated time at this point for any re-opening, but we'll continue to follow this and have more as it develops. >>> in other news tonight police arrested 42 people at a house party in san josi and did that they described as an army of officers to do it. eric rasmussen is live at police headquarters where he heard from police and part- goers who just got out of jail. >> reporter: maureen for their part police say they had bottles thrown at them. one officer was hurt badly enough he had to go to the hospital, but tonight some of those people at the house party told us that they are the victims. showing off bruises and rubber bullets. >> they forget their evidence. >> reporter: a few of the 42 people arrested by san josi police friday night took us inside the scene of a 22nd birthday party that now looks more like a war-zone. >> there was a knock on the door and says everybody needs to come out. no one would come out. >> reporter: this man didn't want to show his face and

election. and, david stevenson is in san francisco totelluswhathe is finding out about the question of turnout, david? >> reporter: the voting booths behind me hera at san francisco city hall are staying busy. ahead of the polls closing at 8:00 this evening. take a look at the video we shot. sanfrancisco has over 503,000 voters. typical turn out here for presidential election is 71%. the elections department says it may be lower this year. half of the mail voters have been returned. but we are seeing people to come to vote in the booths including first-time voters of all ages. >> first time voting. it is very important. i want to vote for this country, the united states. >> it was really exciting and it was -- i was really happy to vote because before i could not vote. so i was just like, asking who are you voting for. now i get to do it. >> reporter: and despite the concerns of the turnout, sap fran has two chosely watched racees and initiatives ranging -- races and initiatives ranging from grocery taxes and the reservoir. the department of elections expects to release results of